Catherine Zeta-Jones has joined cast of Side Effects, director Steven Soderbergh's pharmaceutical-themed thriller, Deadline.com reports. The film concerns a prescription drug-addled woman (Blake Lively) who becomes involved with a doctor (Jude Law) on the eve of her husband's (Channing Tatum) release from prison. Zeta-Jones will play Dr. Erica Seibert, a role for which Deadline provides precisely zero description. Side Effects, which was written by Soderbergh's prolific collaborator Scott Z. Burns (Contagion, The Informant!), is slated to begin shooting in April in New York.